RMS UFO-280 LED High Bay Light,excellent performancewith 120-130lm/w and CRI >80.Meanwell HBG series LEDdriver,Nichia3030, Philips3030,LED chips,5 years warranty.With mature LEDheat sink technology,RMS UFO HIGH BAYseries is RMS domestically developed products.We arealways devote to offering best products and service for you.